I think the quality and experience of amateurs has risen enormously over the past five years. The AA who has trained his/her mount to FEI is no longer a rarity, although I don’t know anyone who has done it “on their own” completely. These people usually have regular trainers who keep them on track.
I am an AA who is close to completing the “green bean to GP track” for the first time. I bought my mare as a barely broken 3 year old. Last year we had a fabulous first season at I-1 including some placings in Pan Am selection trails. She is now working all the Grand Prix and, God willing, will be strong enough to put it all together soon. I can’t say I’ve done it on my own, though. I work with a fabulous trainer who has made a dozen or so GP horses and held a top 5 world ranking. While I would like to do all the riding, there are stretches of time (like now) when my career and other business interests, media, and board committments make that impossible, so, in addition to regular lessons, I reap the benefits of having my trainer keep my horses fit and progressing toward my goals. I also had a GP schoolmaster a few years ago which gives me greater clarity in bringing my current horses along.
I think its exciting and encouraging to see the growing number of really good AAs! They are valuable ambassadors for the sport, no matter what level they are competing.